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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>If you have already reported this on Jira, that’s the best place to hold discussions of the ticket… that way it doesn’t get lost among all the messages flying around on the mailing list<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>????????? ????????<br><b>Sent:</b> Tuesday, September 27, 2016 8:58 AM<br><b>To:</b> FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org><br><b>Subject:</b> Re: [Freeswitch-users] Fwd: Freeswitch uses wrong ICE candidate to establish connection<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:9.5pt'>"Are you using mod_sofia with sip or mod_verto ?"<br>We are using mod_sofia.</span><o:p></o:p></p><div><p class=MsoNormal><span style='font-size:9.5pt'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:9.5pt'>"can you try with varto-communicator and mod_verto wss port ?"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:9.5pt'>Can you please explain how it could be helpful in case of this problem?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:9.5pt'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:9.5pt'>I have already reported issue in Jira (<a href="https://freeswitch.org/jira/browse/FS-9570">https://freeswitch.org/jira/browse/FS-9570</a>).</span><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>2016-09-27 16:35 GMT+03:00 Ken Rice <<a href="mailto:krice@freeswitch.org" target="_blank">krice@freeswitch.org</a>>:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Bugs get reported to Jira @ <a href="https://freeswitch.org/jira" target="_blank">https://freeswitch.org/jira</a> so they don’t fall thru the cracks</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> <a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a> [mailto:<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>] <b>On Behalf Of </b>????????? ????????<br><b>Sent:</b> Tuesday, September 27, 2016 4:10 AM<br><b>To:</b> <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><br><b>Subject:</b> [Freeswitch-users] Fwd: Freeswitch uses wrong ICE candidate to establish connection</span><o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>---------- Forwarded message ----------<br>From: <b>Александр Дружилов</b> <<a href="mailto:alexdruzhilov@gmail.com" target="_blank">alexdruzhilov@gmail.com</a>><br>Date: 2016-09-26 14:31 GMT+03:00<br>Subject: Freeswitch uses wrong ICE candidate to establish connection<br>To: <a href="mailto:freeswitch-users@lists.freeswitch.org" target="_blank">freeswitch-users@lists.freeswitch.org</a><o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>The short description of problem</b><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>We are using Freeswitch for conference calls through webRTC. Chrome collects ICE candidates (from two net interfaces: ethernet and wifi), sends them to Freeswitch and Freeswitch accepts one of this candidates. After that Freeswitch tries to make DTLS handshake, but Chrome ignores it and sends STUN pings over and over again. But if I disable one of this network interfaces, then everything works fine. From my point of view the problem is that Freeswitch uses wrong ICE candidate (it takes this candidate from STUN pings, but there is no exactly such candidate in SDP). I also admit that may be the root of the problem is inside Chrome (because Firefox works properly in this case), but I interested in possible explanations an may be solutions from the Freeswitch side. <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Versions</b><br>Freeswitch 1.6.9, 1.6.10<br>Chrome 52, 53, 54<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Server OS: CentOS 7.2.1511<br>Client OS: Ubuntu 16.04<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>IP addresses</b><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>1) 172.15.1.1 - local VM (VirtualBox)<br>2) 192.168.22.57 - local ethernet interface<br>3) 192.168.41.185 - local wi-fi interface<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>4) 52.202.171.116 - Freeswitch IP<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Succsess case</b><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Chrome sends offer with this candidates (Ethernet and WI-FI addresses)<o:p></o:p></p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:988003974 1 udp 2122260223 192.168.22.57 56687 typ host generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3404510875 1 udp 2122194687 192.168.41.185 57467 typ host generation 0 network-id 4 network-cost 10<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:988003974 2 udp 2122260222 192.168.22.57 60099 typ host generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3404510875 2 udp 2122194686 192.168.41.185 54887 typ host generation 0 network-id 4 network-cost 10<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3148593202 1 udp 1686052607 80.254.60.17 56687 typ srflx raddr 192.168.22.57 rport 56687 generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3148593202 2 udp 1686052606 80.254.60.17 60099 typ srflx raddr 192.168.22.57 rport 60099 generation 0 network-id 1<o:p></o:p></p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Freeswitch choose srflx candidate<br>2016-09-26 10:54:28.337897 [DEBUG] switch_core_media.c:6434 AUDIO RTP [sofia/external576460752303423473@wrike] 172.16.106.100 port 17052 -> 80.254.60.17 port 56687 codec: 111 ms: 20<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Receives STUN pings from this interface and everything goes as expected - media stream established.<br><br><b>Failure case (add one interface (VirtualBox) or disable one of existing interfaces)</b><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Chrome sends offer with one additional interface (VirtualBox).<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:1861086701 1 udp 2122260223 172.15.1.1 43367 typ host generation 0 network-id 3<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:988003974 1 udp 2122194687 192.168.22.57 54230 typ host generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3404510875 1 udp 2122129151 192.168.41.185 42752 typ host generation 0 network-id 4 network-cost 10<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:1861086701 2 udp 2122260222 172.15.1.1 55301 typ host generation 0 network-id 3<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:988003974 2 udp 2122194686 192.168.22.57 44112 typ host generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3404510875 2 udp 2122129150 192.168.41.185 46978 typ host generation 0 network-id 4 network-cost 10<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3148593202 1 udp 1685987071 80.254.60.17 54230 typ srflx raddr 192.168.22.57 rport 54230 generation 0 network-id 1<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>a=candidate:3148593202 2 udp 1685987070 80.254.60.17 44112 typ srflx raddr 192.168.22.57 rport 44112 generation 0 network-id 1<o:p></o:p></p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Freeswitch choose VirtualBox interface as main candidate<o:p></o:p></p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>2016-09-26 11:03:40.513295 [DEBUG] switch_core_media.c:6434 AUDIO RTP [sofia/external/576460752303423471@wrike] 172.16.106.100 port 17000 -> 172.15.1.1 port 42374 codec: 111 ms: 20<o:p></o:p></p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>After a few STUN pings Freeswitch changes his main candidate to the public address of my Wi-Fi interface (but it was not included in SDP by chrome and I don't know exactly why).<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>2016-09-26 11:03:40.912987 [NOTICE] switch_rtp.c:1258 Auto Changing video stun/rtp/dtls port from <a href="http://172.15.1.1:43367" target="_blank">172.15.1.1:43367</a> to <a href="http://80.254.60.17:42752" target="_blank">80.254.60.17:42752</a><br><br>Freeswitch tries to make DTLS handshake with this candidate, but fails because Chrome ingores this "Client Hello" request.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>All necessary data attached for success and failure cases (freeswitch logs, wireshark dump made on client, SDP).<o:p></o:p></p></div></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div></div></div></div><p class=MsoNormal><br>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br><a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br><br>Official FreeSWITCH Sites<br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br><a href="http://confluence.freeswitch.org" target="_blank">http://confluence.freeswitch.org</a><br><a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br><br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>